From d141f4b298de23019405c68ccfb2a0de059e5565 Mon Sep 17 00:00:00 2001 From: Aleksandar Gerasimovski Date: Wed, 13 Jan 2021 16:20:51 +0000 Subject: keymile: common: qrio: print QRIO id and revision number MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add show_qrio function to print chip id and revision information. There are already multiple QRIO chip versions available and the upcoming designs may want to show used version. Signed-off-by: Rainer Boschung Signed-off-by: Aleksandar Gerasimovski Reviewed-by: Priyanka Jain --- board/keymile/common/qrio.c | 12 ++++++++++++ board/keymile/common/qrio.h | 1 + 2 files changed, 13 insertions(+) diff --git a/board/keymile/common/qrio.c b/board/keymile/common/qrio.c index d4e75f2..25937ee 100644 --- a/board/keymile/common/qrio.c +++ b/board/keymile/common/qrio.c @@ -11,10 +11,22 @@ #include "common.h" #include "qrio.h" +/* QRIO ID register offset */ +#define ID_REV_OFF 0x00 + /* QRIO GPIO register offsets */ #define DIRECT_OFF 0x18 #define GPRT_OFF 0x1c +void show_qrio(void) +{ + void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE; + u16 id_rev = in_be16(qrio_base + ID_REV_OFF); + + printf("QRIO: id = %u, revision = %u\n", + (id_rev >> 8) & 0xff, id_rev & 0xff); +} + int qrio_get_gpio(u8 port_off, u8 gpio_nr) { u32 gprt; diff --git a/board/keymile/common/qrio.h b/board/keymile/common/qrio.h index a04a732..757bcbf 100644 --- a/board/keymile/common/qrio.h +++ b/board/keymile/common/qrio.h @@ -11,6 +11,7 @@ #define QRIO_GPIO_A 0x40 #define QRIO_GPIO_B 0x60 +void show_qrio(void); int qrio_get_gpio(u8 port_off, u8 gpio_nr); void qrio_set_opendrain_gpio(u8 port_off, u8 gpio_nr, u8 val); void qrio_set_gpio(u8 port_off, u8 gpio_nr, bool value); -- cgit v1.1